Running out of physical memory? Learn here how to create a swap file on linux. Baseline First check the baseline. It is possible that you have some swap already, like a swap partition (a dedicated disk partition only used for swap) or a swap file, like we are creating in this tutorial. Use the command:… Continue reading Linux: Create a swap file
Cisco type 8 and 9 password hashes calculated using Java
In this article I will discuss three types of algorithms used by Cisco to calculate hashes from plain-text passwords, namely: Type 4, Type 5, Type 8 and Type 9. Back in the year 2013, the Type 4 algorithm was proven insecure because of an implementation error. The algorithm does not use PBKDF2 and does not… Continue reading Cisco type 8 and 9 password hashes calculated using Java
Raspberry Pi: First use
In this post I tell you what you need to know to use your Raspberry Pi for the first time. After following these steps, you are running Raspbian on a Raspberry Pi. Assumptions You are using Ubuntu (15.10) You are using a Raspberry Pi 2 Model B You can power up the Raspberry Pi… Continue reading Raspberry Pi: First use
Dynamic public IP-address / Call – Home
Assume you do have a computer connected to the Internet which obtains it’s public IP-address dynamicly. Some providers like 1und1 in Germany require that the xDSL line is reset every day at least one time. At that moment you obtain a new IP-address from a pool of addresses. Privacy This dynamic IP-address is great if… Continue reading Dynamic public IP-address / Call – Home